[EMAIL PROTECTED] wrote:
>Actually Glycerol is one of the intermediate steps in the complex
>enzyme reactions we know (and love) as "yeast fermentation"
>
>
Are you sure about that? Glycerol is produced in small amounts via
reduction of glyceraldehyde during glycolysis, but constitutes a
metabolic dead end, as far as I am aware. It is not in the pathway to
ethanol and therefore should not be a substrate for ethanol production.
That said, biochemical pathways are not my forte, so if you have a
reference I would like to see it. I guess a simple test would be take
some glycerol and yeast and see if you get ethanol.
>Yeast MAKE glycerol(glycerine) from sugar before they make ethanol.
>
>So any glycerine can be converted to ethanol by introducing it
>(hopefully as purified as possible) into an active fermentation.
>
>AllanD
>
>
>--- In biofuel@yahoogroups.com, <[EMAIL PROTECTED]> wrote:
>
>
>>on 6/15/04 7:35 AM, tomasjkn at [EMAIL PROTECTED] wrote:
>>
>>
>>
>>>It seems to me, that there should be a direct chemical
>>>conversion route from oil to fatty acid methyl esters.
>>>
>>>(R-COO)-CH2-(R-COO-)CH-CH2-(-COO-R) +3H2 ==> 3 R-COO-CH3
>>>
>>>
>>>
>>>
>>Unfortunately, the ester linkage will always be much easier
>>to break than the C-C bonds in the glycerol. I don't believe
>>what you're suggesting would be possible.
>>
>>
>>
>>
>>>Or, perhaps a less radical idea, but achieving the same
>>>economy: Maybe there is a route to convert your waste
>>>glycerol into methanol?
>>>
>>>CH2OH-CHOH-CH2OH + 3H2 ==> 3 CH3OH
>>>
>>>
>>>
>>>
>>This one is much more likely -- there are probly bacteria or
>>yeasts that could break down a simple sugar like glycerol
>>directly to methanol. If not, they could certainly be
>>bioengineered :-) -K
>>
>>
>>
>>
>>Biofuel at Journey to Forever:
>>http://journeytoforever.org/biofuel.html
>>
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>>
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>
>
>
>
>
>Biofuel at Journey to Forever:
>http://journeytoforever.org/biofuel.html
>
>Biofuels list archives:
>http://infoarchive.net/sgroup/biofuel/
>
>Please do NOT send Unsubscribe messages to the list address.
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>
>
>
--
Bob Allen, http://ozarker.org/bob
=========================================================
The modern conservative is engaged in one of Man's oldest exercises in moral
philosophy; that is, the search for a superior moral justification for
selfishness JKG
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